Door-check



(No Model.)

T. G. WILLIAMSON.

DOOR CHECK.

Patented July 21,1885.

-F.IG.. 5

UNITED STATES PATENT OFFICEO THOMAS G. WILLIAMSON, OF PHILADELPHIA,PENNSYLVANIA.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 322,513, dated Jul'y21, 1885.

Application filed July 28, 1883. Renewed June 16, 1885. (No model.)

To all whom, it may concern.- 1

Be it known that I, THOMAS'G. WIL IAM- soN, a suhject of the Queen ofGreat Britain, residing at Philadelphia, in the county of Philadelphiaand State of Pennsylvania, have invented a new and useful Improvement inDoor-Checks, of which the following is a specification.

Hy invention consists in the combination of a pair of clasping-leversand operating-spring, with a bracket, attached to a wash-board, theseveral parts being constructed and arranged, as hereinafter described,whereby to cause the levers to clasp a conically-headed bolt connectedwith the door when'the latter isth row'n back toward the wall of theroom.

In the accompanying drawings, which make a part of this specification,Figure 1 is a plan view of the bracket A, provided with clasping-leversE E, and connected with the washboard B. Fig. 2 is a plan view of thebolt 0 in connection with the doorD. Fig. 3 is a horizontal sectionthrough Figs. 1 and 2. Fig. 4 is an edge view of the bracket A, providedwith the levers E E. Fig. 5 is an edge view of the bracket A without thelevers.

Like letters of reference in all the figures indicate the same parts.

A represents a bracket connected with the wash-board B, and O aconical-headed bolt attached to the door D.

E E are levers, which are hung on the fulcrum-pins a a, as shown inFigs. 1, 8, and 4, the ends of the pins being held in the cheeks b b ofthe bracket A.

G is a spiral spring, which is held at the middle in the opening 0 ofdivision-plate d of the bracket, as seen in Fig. 3, the ends bearingagainst the handles of the levers E E, which are provided with lugs e e,that fit the central opening of the spring, to support it at thosepoints and thereby keep it in line. The

head f of the bolt 0 is of suitable conical shape to cause it to openthe levers E E easily when it comes into the position between the lipsh'45 h, as seen in Fig. 3, as the door is thrown back. The annularshoulder i, by coming against the front ends of the levers, arrests thefurther movement of the bolt, and the lips of the lever clasp its neck 9by being forced inward by the spring G. The lips of the levers arecurved, as represented, so as to lit the neck 9 of the bolt 0, and toprevent their being forced by the spring farther inward than isnecessary to insure a firm clasping of the bolt the inner ends of thelevers are arrested in their movement by coming against the walls of thechamber j of the bracket A, as seen in Fig. 3. V

I do not confine myself to a spiral spring for operating the levers E E,as they may be actuated by a spring or springs of other description witha like result.

I am aware that a door-fender consisting of two jaws connected togetherby a spring and attached to a disk or plate, is not new, and I do notclaim the same.

I claim as my invention- 1. The combination of the bracket A, providedwith fulcrum-pins a a, and chamber 7', having a division'plate, d, withan opening, 0, the spring G, having a middle bearing in said opening,and the levers E E, having clasp- -ing-lips h h at one end and lugs e eat the other end, the latter being surrounded by the end coils of thespring G, substantially in the man ner and for the purpose set forth.

2. The combination of abracket, two levers pivoted thereto, eachhaving'a lip or jaw at one end and lug at the other, a spring supportedupon the lugs and pressing against the levers, and a conical-headed boltadapted to enter between the jaws of the levers, substantially asdescribed.

THOMAS G. \VILLIAMSON.

\Vitnesses:

STEPHEN USTIOK, WM. LARZALERE.

